Dragonhead (Dracocephalum botryoides) is a cushion-forming evergreen subshrub that can be found growing naturally on gravelly slopes in the Caucasus Mountains. Pale pink flowers top woolly foliage in early spring. This rare, short-lived plant is happiest in the partially shaded rock garden. Good drainage is essential for success through winter. Zone: 4 to 8 Family: Lamiaceae Type: evergreen subshrub Height: 2 to 6 in. Spread: 2 to 6 in. Exposure: full sun to part shade Conditions: scree, well-drained, dry, best in the rock garden Bloom Time: April to May Native Range: the Caucasus Mountains